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Diffstat (limited to 'trunk/TAO/orbsvcs/orbsvcs/LoadBalancing/LB_IORInterceptor.h')
-rw-r--r-- | trunk/TAO/orbsvcs/orbsvcs/LoadBalancing/LB_IORInterceptor.h | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/trunk/TAO/orbsvcs/orbsvcs/LoadBalancing/LB_IORInterceptor.h b/trunk/TAO/orbsvcs/orbsvcs/LoadBalancing/LB_IORInterceptor.h new file mode 100644 index 00000000000..6b93c951912 --- /dev/null +++ b/trunk/TAO/orbsvcs/orbsvcs/LoadBalancing/LB_IORInterceptor.h @@ -0,0 +1,152 @@ +// -*- C++ -*- + +//============================================================================= +/** + * @file LB_IORInterceptor.h + * + * $Id$ + + * @author Ossama Othman <ossama@uci.edu> + */ +//============================================================================= + +#ifndef TAO_LB_IOR_INTERCEPTOR_H +#define TAO_LB_IOR_INTERCEPTOR_H + +#include "ace/config-all.h" + +#if !defined (ACE_LACKS_PRAGMA_ONCE) +# pragma once +#endif /* ACE_LACKS_PRAGMA_ONCE */ + +#include "orbsvcs/CosLoadBalancingC.h" +#include "tao/LocalObject.h" +#include "tao/IORInterceptor/IORInterceptor.h" + +#if defined(_MSC_VER) +#pragma warning(push) +#pragma warning(disable:4250) +#endif /* _MSC_VER */ + + +TAO_BEGIN_VERSIONED_NAMESPACE_DECL + +/// Forward declarations. +class TAO_LB_LoadAlert; + + +/** + * @class TAO_LB_IORInterceptor + * + * @brief TAO Load Balancer IOR interceptor. + * + * This IORInterceptor is registered in object group member ORBs. + * During creation of the object group member reference, this + * IORInterceptor will change the "current_factory" attribute of the + * PortableInterceptor::IORInfo object to the Load Balancer's + * ObjectReferenceFactory. + * + * @see LB_ObjectReferenceFactory.h for details. + */ +class TAO_LB_IORInterceptor + : public virtual PortableInterceptor::IORInterceptor_3_0, + public virtual TAO_Local_RefCounted_Object +{ +public: + + /// Constructor. + TAO_LB_IORInterceptor (const CORBA::StringSeq & object_groups, + const CORBA::StringSeq & repository_ids, + const char * location, + CosLoadBalancing::LoadManager_ptr lm, + const char * orb_id, + TAO_LB_LoadAlert & load_alert); + + /** + * @name Methods Required by the IOR Interceptor Interface + * + * These are methods that must be implemented since they are pure + * virtual in the abstract base class. They are the canonical + * methods required for all IOR interceptors. + */ + //@{ + /// Return the name of this IORInterceptor. + virtual char * name (ACE_ENV_SINGLE_ARG_DECL_WITH_DEFAULTS) + ACE_THROW_SPEC ((CORBA::SystemException)); + + /// Cleanup resources acquired by this IORInterceptor. + virtual void destroy (ACE_ENV_SINGLE_ARG_DECL_WITH_DEFAULTS) + ACE_THROW_SPEC ((CORBA::SystemException)); + + /// Add the tagged components to the IOR. + virtual void establish_components ( + PortableInterceptor::IORInfo_ptr info + ACE_ENV_ARG_DECL_WITH_DEFAULTS) + ACE_THROW_SPEC (( + CORBA::SystemException + )); + + virtual void components_established ( + PortableInterceptor::IORInfo_ptr info + ACE_ENV_ARG_DECL_WITH_DEFAULTS) + ACE_THROW_SPEC ((CORBA::SystemException)); + + virtual void adapter_manager_state_changed ( + const char * id, + PortableInterceptor::AdapterState state + ACE_ENV_ARG_DECL_WITH_DEFAULTS) + ACE_THROW_SPEC (( + CORBA::SystemException + )); + + virtual void adapter_state_changed ( + const PortableInterceptor::ObjectReferenceTemplateSeq & templates, + PortableInterceptor::AdapterState state + ACE_ENV_ARG_DECL_WITH_DEFAULTS) + ACE_THROW_SPEC (( + CORBA::SystemException + )); + + //@} + +private: + + /// Create and register the LoadAlert object with the LoadManager. + void register_load_alert (ACE_ENV_SINGLE_ARG_DECL); + +private: + + /// List of stringified object group references. + const CORBA::StringSeq object_groups_; + + /// List of RepositoryIds for object that will be load + /// managed/balanced. + const CORBA::StringSeq repository_ids_; + + /// Location at which the LoadBalancing component resides. + CORBA::String_var location_; + + /// Reference to the LoadManager. + CosLoadBalancing::LoadManager_var lm_; + + /// ORBid of the ORB this IORInterceptor is registered with. + CORBA::String_var orb_id_; + + /// Reference to the LoadAlert servant. + TAO_LB_LoadAlert & load_alert_; + + /// Reference to the LoadAlert object. + CosLoadBalancing::LoadAlert_var la_ref_; + + /// Synchronize access to the class state. + TAO_SYNCH_MUTEX lock_; + +}; + +TAO_END_VERSIONED_NAMESPACE_DECL + +#if defined(_MSC_VER) +#pragma warning(pop) +#endif /* _MSC_VER */ + +#endif /* TAO_LB_IOR_INTERCEPTOR_H */ |